4 * Copyright IBM, Corp. 2007
5 * Copyright (c) 2009 CodeSourcery
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Paul Brook <paul@codesourcery.com>
11 * This work is licensed under the terms of the GNU GPL, version 2. See
12 * the COPYING file in the top-level directory.
15 #ifndef QEMU_VIRTIO_PCI_H
16 #define QEMU_VIRTIO_PCI_H
18 #include "hw/pci/msi.h"
19 #include "hw/virtio/virtio-blk.h"
20 #include "hw/virtio/virtio-net.h"
21 #include "hw/virtio/virtio-rng.h"
22 #include "hw/virtio/virtio-serial.h"
23 #include "hw/virtio/virtio-scsi.h"
24 #include "hw/virtio/virtio-balloon.h"
25 #include "hw/virtio/virtio-bus.h"
26 #include "hw/virtio/virtio-9p.h"
28 typedef struct VirtIOPCIProxy VirtIOPCIProxy;
29 typedef struct VirtIOBlkPCI VirtIOBlkPCI;
30 typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
31 typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
32 typedef struct VirtIOSerialPCI VirtIOSerialPCI;
33 typedef struct VirtIONetPCI VirtIONetPCI;
37 typedef struct VirtioBusState VirtioPCIBusState;
38 typedef struct VirtioBusClass VirtioPCIBusClass;
40 #define TYPE_VIRTIO_PCI_BUS "virtio-pci-bus"
41 #define VIRTIO_PCI_BUS(obj) \
42 OBJECT_CHECK(VirtioPCIBusState, (obj), TYPE_VIRTIO_PCI_BUS)
43 #define VIRTIO_PCI_BUS_GET_CLASS(obj) \
44 OBJECT_GET_CLASS(VirtioPCIBusClass, obj, TYPE_VIRTIO_PCI_BUS)
45 #define VIRTIO_PCI_BUS_CLASS(klass) \
46 OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS)
48 /* Performance improves when virtqueue kick processing is decoupled from the
49 * vcpu thread using ioeventfd for some devices. */
50 #define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1
51 #define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT)
60 * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
62 #define TYPE_VIRTIO_PCI "virtio-pci"
63 #define VIRTIO_PCI_GET_CLASS(obj) \
64 OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI)
65 #define VIRTIO_PCI_CLASS(klass) \
66 OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI)
67 #define VIRTIO_PCI(obj) \
68 OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI)
70 typedef struct VirtioPCIClass {
71 PCIDeviceClass parent_class;
72 int (*init)(VirtIOPCIProxy *vpci_dev);
75 struct VirtIOPCIProxy {
82 uint32_t host_features;
87 bool ioeventfd_disabled;
88 bool ioeventfd_started;
89 VirtIOIRQFD *vector_irqfd;
90 int nvqs_with_notifiers;
96 * virtio-scsi-pci: This extends VirtioPCIProxy.
98 #define TYPE_VIRTIO_SCSI_PCI "virtio-scsi-pci"
99 #define VIRTIO_SCSI_PCI(obj) \
100 OBJECT_CHECK(VirtIOSCSIPCI, (obj), TYPE_VIRTIO_SCSI_PCI)
102 struct VirtIOSCSIPCI {
103 VirtIOPCIProxy parent_obj;
108 * virtio-blk-pci: This extends VirtioPCIProxy.
110 #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci"
111 #define VIRTIO_BLK_PCI(obj) \
112 OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI)
114 struct VirtIOBlkPCI {
115 VirtIOPCIProxy parent_obj;
121 * virtio-balloon-pci: This extends VirtioPCIProxy.
123 #define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci"
124 #define VIRTIO_BALLOON_PCI(obj) \
125 OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI)
127 struct VirtIOBalloonPCI {
128 VirtIOPCIProxy parent_obj;
133 * virtio-serial-pci: This extends VirtioPCIProxy.
135 #define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci"
136 #define VIRTIO_SERIAL_PCI(obj) \
137 OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI)
139 struct VirtIOSerialPCI {
140 VirtIOPCIProxy parent_obj;
145 * virtio-net-pci: This extends VirtioPCIProxy.
147 #define TYPE_VIRTIO_NET_PCI "virtio-net-pci"
148 #define VIRTIO_NET_PCI(obj) \
149 OBJECT_CHECK(VirtIONetPCI, (obj), TYPE_VIRTIO_NET_PCI)
151 struct VirtIONetPCI {
152 VirtIOPCIProxy parent_obj;
156 void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
157 void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev);
159 /* Virtio ABI version, if we increment this, we break the guest driver. */
160 #define VIRTIO_PCI_ABI_VERSION 0